diff --git a/cmd/iceberg/main.go b/cmd/iceberg/main.go
index 84d04fb7b..7ebe8a403 100644
--- a/cmd/iceberg/main.go
+++ b/cmd/iceberg/main.go
@@ -19,9 +19,11 @@ package main
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"log"
+	"net/url"
 	"os"
 	"strings"
 
@@ -83,7 +85,9 @@ Options:
   --description TEXT 	specify a description for the namespace
   --location-uri TEXT  	specify a location URI for the namespace
   --schema JSON        	specify table schema in json (for create table use only)
-                       	Ex: [{"name":"id","type":"int","required":false,"doc":"unique id"}]`
+                       	Ex: [{"name":"id","type":"int","required":false,"doc":"unique id"}]
+  --rest-config TEXT	specify the REST configuration to use
+                       	Ex: sigv4-enabled=true,sigv4-region=us-east-1,sigv4-service=glue`
 
 type Config struct {
 	List     bool `docopt:"list"`
@@ -125,6 +129,7 @@ type Config struct {
 	Description string `docopt:"--description"`
 	LocationURI string `docopt:"--location-uri"`
 	SchemaStr   string `docopt:"--schema"`
+	RestConfig  string `docopt:"--rest-config"`
 }
 
 func main() {
@@ -162,6 +167,29 @@ func main() {
 		if len(cfg.Cred) > 0 {
 			opts = append(opts, rest.WithCredential(cfg.Cred))
 		}
+		if len(cfg.RestConfig) > 0 {
+			restCfg := config.ParseRestConfig(cfg.RestConfig)
+
+			if strings.ToLower(restCfg["sigv4-enabled"]) == "true" {
+				opts = append(opts, rest.WithSigV4())
+			}
+
+			if len(restCfg["sigv4-region"]) > 0 && len(restCfg["sigv4-service"]) > 0 {
+				opts = append(opts, rest.WithSigV4RegionSvc(restCfg["sigv4-region"], restCfg["sigv4-service"]))
+			}
+
+			if len(restCfg["auth-url"]) > 0 {
+				authUri, err := url.Parse(restCfg["auth-url"])
+				if err != nil {
+					log.Fatal(err)
+				}
+				opts = append(opts, rest.WithAuthURI(authUri))
+			}
+
+			if restCfg["tls-skip-verify"] == "true" {
+				opts = append(opts, rest.WithTLSConfig(&tls.Config{InsecureSkipVerify: true}))
+			}
+		}
 
 		if len(cfg.Warehouse) > 0 {
 			opts = append(opts, rest.WithWarehouseLocation(cfg.Warehouse))
@@ -475,4 +503,7 @@ func mergeConf(fileConf *config.CatalogConfig, resConfig *Config) {
 	if len(resConfig.Warehouse) == 0 {
 		resConfig.Warehouse = fileConf.Warehouse
 	}
+	if len(resConfig.RestConfig) == 0 {
+		resConfig.RestConfig = fileConf.RestConfig
+	}
 }
diff --git a/config/config.go b/config/config.go
index 3d645ddee..02a45df74 100644
--- a/config/config.go
+++ b/config/config.go
@@ -20,6 +20,7 @@ package config
 import (
 	"os"
 	"path/filepath"
+	"strings"
 
 	"gopkg.in/yaml.v3"
 )
@@ -41,6 +42,7 @@ type CatalogConfig struct {
 	Output      string `yaml:"output"`
 	Credential  string `yaml:"credential"`
 	Warehouse   string `yaml:"warehouse"`
+	RestConfig  string `yaml:"rest-config"`
 }
 
 func LoadConfig(configPath string) []byte {
@@ -76,6 +78,21 @@ func ParseConfig(file []byte, catalogName string) *CatalogConfig {
 	return &res
 }
 
+func ParseRestConfig(restConfig string) map[string]string {
+	result := make(map[string]string)
+	if restConfig == "" {
+		return result
+	}
+
+	pairs := strings.Split(restConfig, ",")
+	for _, pair := range pairs {
+		if kv := strings.SplitN(pair, "=", 2); len(kv) == 2 {
+			result[kv[0]] = kv[1]
+		}
+	}
+	return result
+}
+
 func fromConfigFiles() Config {
 	dir := os.Getenv("GOICEBERG_HOME")
 	if dir != "" {
diff --git a/config/config_test.go b/config/config_test.go
index c176b6382..ebd6fd51e 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -78,6 +78,27 @@ catalog:
 			Warehouse:   "catalog_name",
 		},
 	},
+	// catalog with rest-config
+	{
+		[]byte(`
+catalog:
+  rest-catalog:
+    type: rest
+    uri: https://glue.us-east-1.amazonaws.com/iceberg
+    output: json
+    credential: client-id:client-secret
+    warehouse: 123456789012
+    rest-config: auth-url=https://auth.example.com,sigv4-enabled=true,sigv4-region=us-east-1,sigv4-service=glue,tls-skip-verify=false
+`), "rest-catalog",
+		&CatalogConfig{
+			CatalogType: "rest",
+			URI:         "https://glue.us-east-1.amazonaws.com/iceberg",
+			Output:      "json",
+			Credential:  "client-id:client-secret",
+			Warehouse:   "123456789012",
+			RestConfig:  "auth-url=https://auth.example.com,sigv4-enabled=true,sigv4-region=us-east-1,sigv4-service=glue,tls-skip-verify=false",
+		},
+	},
 }
 
 func TestParseConfig(t *testing.T) {
@@ -87,3 +108,26 @@ func TestParseConfig(t *testing.T) {
 		assert.Equal(t, tt.expected, actual)
 	}
 }
+
+func TestRestCatalogConfig(t *testing.T) {
+	yamlData := []byte(`
+catalog:
+  default:
+    type: rest
+    uri: https://glue.us-east-1.amazonaws.com/iceberg
+    output: json
+    rest-config: auth-url=https://auth.example.com,sigv4-enabled=true,sigv4-region=us-east-1,sigv4-service=glue,tls-skip-verify=false
+`)
+
+	config := ParseConfig(yamlData, "default")
+	assert.NotNil(t, config)
+	restConfig := ParseRestConfig(config.RestConfig)
+	assert.NotEmpty(t, restConfig)
+
+	// Test RestCatalog config fields
+	assert.Equal(t, "https://auth.example.com", restConfig["auth-url"])
+	assert.Equal(t, "true", restConfig["sigv4-enabled"])
+	assert.Equal(t, "us-east-1", restConfig["sigv4-region"])
+	assert.Equal(t, "glue", restConfig["sigv4-service"])
+	assert.Equal(t, "false", restConfig["tls-skip-verify"])
+}